After serving six years as an education officer in the
Royal Air Force, he began his academic career at the
Cardiff University, as an assistant lecturer in politics in 1966. He became senior lecturer and then reader in politics at Cardiff before moving to the
University of Aberdeen, where he was appointed as the first chair in international relations in 1979. He published his first book on terrorism,
Political Terrorism, in 1974. In 1989 he was appointed to the first chair in international relations at the
University of St Andrews and served as the director of the Research Institute for the Study of Conflict and Terrorism from 1989 to 1994. During the 1997–98 academic year he was a visiting fellow at
Trinity College, Cambridge. He is co-founder and was co-editor of the academic journal
Terrorism and Political Violence 1989–2006, and directed a research project funded by
the UK's Economic and Social Research Council (ESRC) on the UK's preparedness for terrorist attacks. He also served as Adviser to
Lord Lloyd of Berwick's "Inquiry into Legislation Against Terrorism" and authored its second volume, "Research Report for the Inquiry", which were published in October 1996. In August 2007 he was appointed Emeritus Professor of International Relations and retired from serving as the chairman of CSTPV's advisory board but remained active in academia and policy circles. == Academic work ==